Hood clearance question

@GTX JOHN is probably right. I have a 69 Barracuda with a 340. I put an Air Gap and a 750 CFM Eddy carb on it. My clearance was close, so I went with a 2" or 2.5" tall (I really don't remember) K&N filter. The guy at K&N told me that it would outflow the 3" paper element. Everything worked fine. The hood did close OK before, but it was very close. The new filter element gave me extra space and extra peace of mind.